Apparatus for blowing soot.



T. E. WHITE,

APPARATUS FOR BLOWING SCOT.

APPLIGAUON HLED JAN. 24, 1911.

Patented June 27, 19H.'

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wr/veis wrom/fx l T.` B. WHITE. APPARATUS POR BLOWING SOOT. APPLICATIONFILED JAN. 24, 1,911.

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@www1 #MMM Patented June 2'?, 1911.

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pliia, and State olf PennsylvaniaHhave iii-f vented anImprinted.iipparatus .for Blow' ing Soot, of whfichgthe .following is aspeci-' tication.

My invention is designed for blowing soot from boilers and its leadingobject is to more effectively clear the heating surfaces of deposits bysimple and inexpensive apparatus.

The characteristic features of my invention-are fully disclosedin thefollowing description and Atheaccompanying drawings in illustrationthereof. V Y In the drawings, Figure l is a frontelevation of a boilerhaving my improved apparatus applied thereto; Fig, Q is asectionalelevat-ion representing details of construction; Fig. 3 is apart sectional and side elevation of the construction illustrated inFig. 1;.Fig. 4 is a front elevation of a inarineboiler havingimprovements .of my invention applied thereto, and Fig. 5 is a verticalsection taken on the line 5-5 of Fig. 4.,

The appara/tus illustrated in Figs. 1,2, and 3 comprises the headers 1and '3 connected by the tubes 3, and connected with the drum 4, thetubes carrying the battles 5 and G and the headers resting on thet'urnace walls 'a' and'S.

The steam pipe or main 9 is connected with the braiiclivpipes 10 and 11,and a three way valvel2', at the junction of the main with its branches,controls the discharge from the main so that it can be sent through therespectivebranches alternately. 'The branch pipes discharge through therespective laterals 13 and 1st which discharge through branches l5connected b v couplings 16 with nozzles 17. These nozzles` are disposedin the hollow stag-'bolts 1S extending 'through the header l and thecouplings have the tapered ends' 1G which lit in and close the outerends of the stay bolts. A further branch pipe 18, controlled by thevalve 19, discharges througlisiinilar nozzles 2O above the baille (i. Abranch 21, controlled b vV the .valve 22, is adapted for draining.

The' branch pipes, with the parts depend- ,itig thereon, are supportedb); plaies or bars- 23 engaged by the cover plate bolts -24 and thestraps or shoes 2 5. coupled to the parts 'of'- combustion flowing' fromthe' conibu'stion chamber 27 through the pass 28 toward the header 1,and thence to -the pass 29, 'steam is 'admitted to irstone and then tothe other 'of the pipes 10 and 11 so that the sections of the pass '28on either side or' a vertical plane-passed longitudinally through thecenter thereotare blown at different times, with the result thatiii thesection being blown the heating gases and steam jets act in oppositedirections, lift the soot and force it .into the unobstructed current ofheating gases flowing in the 'adjacent section, whereby the soot. iscarried to the stack.

Inthe apparatus illustrated in Figs. l and the main pipe 30 is providedwith branch pipes 31 to which steam is admitted under control oftherespective valves 232.

Branches 33 extend later-alliY from the pipes 3`1`and connect tlieniwithnozzles 3l disposed so` thatsteani jets can be forced through the liretubes 35 into the combustion chamber 3G through which the furnacechambers 3T discharge to the stack 3S.

In operation, a set of tubes is cleaned b v opening one ofthe valves3'2, while the other is, closed, and blowing against the current-of theheating gases into the ychamber 3G, whence the soot is carried by theheating gases through the other half ot' the tubes of the set, fromwhich the steam is cut oli'. vile-ii halt the tubes of a set, have beencleaned b v discharging steam jets therethrough from a of branches 31and 233, thesteam is cut ott' from these branches and admitted tocoinpleinentaivv branches 31 and whereby the soot is blown from thesecond half of the tubes into the chamber 3G and carried thence b v theheating gases'through the first half of the tubes.

I have found that most effective cleaning can be obtained by this inodeof operation,

with an apparatus that is simple and readily applied.

-Iflaviiig described my invention, I claim:

l. The improvements which comprise the.

.ede for discharging Huid oppositely-jtolthe current 'of the heatingases in contact-V with different tubesof sai set, -and means'where- Abysaid sets ofnozzles canjhe' discharged in l with l the 'respectivelateralV combination Lof" headers,,'v tubes connecting 'said headers','hnwj 'Stay bolts extending 'I Y through saidfheaders, and handholecqve'rv ing means comprising bolts; with', vbranch posed i11`said"staybolts and meansfor. connecting'said nozzles withs'aid'pipes.

Inz witness-whereof Iyhvehereuntd set my name this 23rd dayof January,191:15 in the presence 4'of-the subscribixg w'itness'es.

' 'YTHOM ,SN

'means supported 'by-'saidL llast. namedfor ho1dingfsaid1pipes,'no'z'zles dis-

